<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			
		 button:focus{
			 outline: 2px solid #4385f6;
			 
			 /* margin: 5px; */
			 
		 }
			
		</style>
	</head>
	<body>
		
		
		<button>A</button>
		<button>B</button>
		<button>C</button>
	</body>
</html>
